Local zoning · Paso Robles

Paso Robles — Landscaping and Screening

Q: Are there required setback widths for landscaping next to streets or residences?

For outdoor storage and similar uses, the code requires a 25‑ft landscaped setback when abutting collectors/arterials/highways or residentially zoned property, and 15‑ft for less significant streets. See § 21.69.170(C) .

Q: Can I put parking in the required landscaped setback?

The code allows up to 50% of a landscaped setback to be used for off‑street parking under some conditions, but a 10‑ft landscaped buffer is still required between the property line and the parking area; the review authority may limit this to maintain screening (outdoor storage rules). See § 21.69.170(C) .

Landscaping and Screening under the Paso Robles local zoning and planning code, with the controlling citations.

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Last reviewed: July 2, 2026

Overview

This page summarizes what the Paso Robles zoning code requires for landscaping, screening, buffers, fences/walls, and trees. It is limited to the land‑use/zoning rules in the municipal code (Title 21 and related local Titles referenced by the code) — not building code or permit process specifics. Key rules live in the landscaping chapter and several special‑use chapters; see § 21.45.010–.020 for the basic landscaping framework and the individual use standards that add screening and wall/fence limits.

How to use this page

If you need the city's general zoning map or what a parcel is zoned, start at the Paso Robles Zoning & Planning overview or the Paso Robles Zoning page.
If your proposal touches parking areas, rooftop/open‑space, or buffering next to streets or residences, cross‑check the Paso Robles Parking and Paso Robles Development Standards pages as those chapters add numeric standards to the landscaping rules.

Core local rules (quick bullets)

The city’s landscaping and open‑space chapter sets applicability to new construction and rehabilitated landscapes and requires landscape plans, irrigation, species selection, and maintenance; see § 21.45.010–.020.
Required landscaping must include a minimum live‑plant cover; 30% of required landscape area must be live plant materials at maturity. § 21.45.020(B)(1).
Street and oak tree rules point to Title 10 (Vegetation) — the zoning code defers street tree and oak preservation requirements to Title 10. § 21.45.020(B)(3), (F).
Parking lots with six or more spaces must provide landscape area (8 sq ft per space) and screening where adjacent to residential zoning; screening must be solid/opaque and between 5 ft and 6 ft tall. § 21.48.040(C).
Outdoor storage and industrial/commercial yards must be screened from public view by a combination of walls/fences and landscaping; landscaped setbacks of 25 ft (abutting collectors/arterials/highways or residential zones) or 15 ft (lesser streets) apply. Walls/fences are generally 6–8 ft high. § 21.69.170(C).
Residential fence limits and reverse‑corner lot rules (front/side yard fence heights) are codified in the fence rules (see § 21.44.030).

District-by-district breakdown (landscaping & screening focus)

Note: the code uses many zoning districts. Below are the districts that the ordinance text addresses directly in the landscaping/screening context. For district designations, required findings, or parcel‑specific questions, Verify with the jurisdiction.

R-1 (Single‑Family Residential)

Purpose & typical uses: residential single‑family lots. See additional development standards for single‑family in § 21.33.040.
Landscaping/screening highlights:
- Required landscaping rules apply to new or rehabilitated landscapes in residential projects; the chapter applies broadly. § 21.45.010–.020.
- Fence heights in front/street side yards on reverse‑corner lots are limited (no higher than 3 ft in the street side yard; site‑plan modification may allow up to 4 ft). § 21.44.030(B).
- Driveways parallel to a street must provide a 10‑ft maintained landscaped setback between the right‑of‑way and the driveway edge. § 21.48.040(D)(1)(b).

R‑A (Residential Agricultural)

Purpose & typical uses: larger lots, agriculture/residential mix. Standards for lot size/yard modification appear in the single‑family section § 21.33.040 where R‑A is grouped with R‑1 for some modifications. Landscaping requirements track the general landscaping chapter. § 21.33.040; § 21.45.020.

R‑2 / R‑3 / R‑4 / R‑5 (Multi‑Family Residential)

Purpose & typical uses: denser residential development. Additional development standards are in § 21.33.060, which cross‑references the general landscaping/open‑space rules. § 21.33.060; § 21.45.020.
Key landscape provisions:
- Multi‑family developments must meet the same live plant coverage requirement (30% live plant area) and general landscape plan standards. § 21.45.020(B)(1).
- On‑site open space and common areas must be landscaped and usable; see multi‑family open space tables and notes. § 21.33.060(E).

B‑3 (Mixed‑Use / Business) and other commercial zones

Purpose & typical uses: commercial, retail, mixed uses (B‑3 appears in density tables and use regs). Landscaping rules for nonresidential sites are in Chapter 21.45 and in parking/open‑space/landscape details. § 21.33.060; § 21.45.020; § 21.48.040.
Commercial/industrial specifics:
- Outdoor storage must be screened from public view and adjacent properties by walls/fences plus landscaping; landscaped setbacks of 25 ft (if abutting collector/arterial/highway or a residential zone) and 15 ft otherwise. Walls/fences must generally be between 6 ft and 8 ft high; planters adjacent to walls have minimum widths. § 21.69.170(C).
- Parking lot landscape requirements: 8 sq ft per parking space for lots with six or more spaces; shade tree targets (25% canopy cover within five years for large lots). Screening between parking and adjacent residential properties must be solid and 5–6 ft tall. § 21.48.040(C).

Mobile Home Parks / Recreational Vehicle Parks / Self‑Storage (special use rules)

Mobile home parks: require a 6‑ft solid masonry/concrete perimeter fence, 10‑ft landscaping between the perimeter wall and the public right‑of‑way, and otherwise follow residential development standards. (See the mobile home park standards in § 21.69.150).
Recreational vehicle parks: have landscape setbacks (recreational vehicle placement setbacks of 25 ft to public ROW and 15 ft to interior property lines) and must follow site plan/development plan review; landscaping requirements are in the special RV park section § 21.69.180.
Self‑storage facilities: landscaping and screening rules require a landscaped site approved by the review authority and repeat the 25 ft / 15 ft landscaped setback rules and maximum wall/fence heights. § 21.69.150; § 21.69.170(C).

Key numeric standards (decision‑relevant) — quick table

Requirement	Typical value / rule	Code Reference
Minimum live plant cover of required landscape area	30%	§ 21.45.020(B)(1)
Landscaped setback for outdoor storage abutting collectors/arterials/highways or residential zones	25 ft	§ 21.69.170(C)
Landscaped setback for other streets	15 ft	§ 21.69.170(C)
Allowed wall/fence height for outdoor storage / commercial screening	6–8 ft	§ 21.69.170(C)
Parking lot landscape area (lots ≥6 spaces)	8 sq ft per space; screening 5–6 ft tall where adjacent to residential	§ 21.48.040(C)
Driveway/parallel street landscaped setback in single‑family	10 ft	§ 21.48.040(D)(1)(b)
Reverse corner lot street‑side fence height limit (R‑1)	3 ft (may modify to 4 ft)	§ 21.44.030(B)
Trees on graded slopes (hillside landscaping)	1 tree / 1,000 sq ft of graded slope	§ 21.81.040(D)(5)(b)(iv)
Irrigation requirement for required landscaping	Irrigation required; compliance with Water Efficient Landscaping (Chapter 21.56)	§ 21.45.020(B)(5); § 21.56

Practical guidance and interpretation

Start with the landscape chapter: a complete landscape plan is mandatory for new or rehabilitated non‑trivial projects (commercial, industrial, residential beyond one single‑family yard remodel); follow § 21.45.010–.020. The plan must show irrigation and species, and meet the live‑plant minimum and turf limits.
When your site borders a collector/arterial or a residential zone, plan on a 25‑ft landscaped buffer for outdoor storage or high‑impact uses; this buffer can be partially used for parking only up to limited amounts and only with a 10‑ft planted separation from the property line to the parking field. § 21.69.170(C)(2)(a)(iii).
For screening between commercial parking and residences, expect solid/opaque materials (no plain chain link) combined with plantings and a finished height around 5–6 ft. The review authority may require masonry or earth berms with planting. § 21.48.040(C)(12).
For residential fences, front and corner lot limits are stricter — check § 21.44.030 before you propose higher front/side fences; there is a formal site plan modification route for minor increases. § 21.44.030; § 21.17.020.
Street trees and any oak preservation requirement are administered under Title 10 (Vegetation); for projects affecting existing oaks, check Title 10 and the oak removal permit requirements (§ 10.01.030) in addition to the landscape rules. § 21.45.020(F); § 10.01.030.

Checklist

Prepare a landscape plan that complies with § 21.45.010–.020 (plant palette, irrigation, maintenance).
Demonstrate 30% live plant cover in required landscape areas (§ 21.45.020(B)(1)).
If parking ≥ 6 spaces: include 8 sq ft per space of landscape, tree canopy calculations, and screening where adjacent to residential (§ 21.48.040(C)).
If outdoor storage/commercial yard: show 25 ft / 15 ft landscaped setbacks, wall/fence heights (6–8 ft), and planter dimensions (§ 21.69.170(C)).
For R‑1 reverse corner or front yard fences, confirm 3 ft limit (modification process exists for some increases) — § 21.44.030(B).
Check for street tree and oak permit obligations under Title 10; include required street tree planting where applicable (§ 21.45.020(B)(3)).
If on a hillside or graded slope, include erosion control, irrigation, and the 1 tree per 1,000 sq ft slope planting rate where required (§ 21.81.040(D)).

Risks & Ambiguities

Issue	Why it matters	What to verify
Which district a parcel is zoned	Screening/landscape obligations and allowed fence heights can vary by district	Confirm parcel zoning at the city planner or Paso Robles Zoning; site‑specific verification required
Exact subsection applicability (e.g., parking screening vs. outdoor storage)	Different chapters cross‑apply (21.45, 21.48, 21.69) and could impose overlapping or additive requirements	Check § 21.45.020, § 21.48.040, and § 21.69.170(C) together for the project; ask the review authority which controls for your use.
Tree protection / oak removal	Oak preservation and street trees are regulated in Title 10 and may require separate permits	Verify Title 10 obligations and any oak removal permit (see § 10.01.030); coordinate with the city arborist.
Fence height where retaining walls exist	Fence height is measured from the higher side of the retaining wall; effective height may exceed typical limits	Confirm measurement and possible need for a site plan modification per § 21.81.040 / § 21.44.030.
Irrigation / water‑use compliance	Local water‑efficiency standards (Chapter 21.56) are enforced for required landscaping	Confirm irrigation design meets § 21.45.020(B)(5) and Chapter 21.56 requirements.

Plain‑English summary

Paso Robles requires landscape plans, minimum live‑plant cover, street trees (per Title 10), and screening between high‑impact uses (parking, outdoor storage) and neighbors; key numeric rules you’ll see most often are 25 ft and 15 ft landscaped setbacks for outdoor storage, 6–8 ft commercial wall/fence heights, 5–6 ft residential screening heights for parking adjacencies, and 30% live plant cover for required landscape areas. Verify parcel zoning and Title 10 oak/street‑tree rules with the city before design. § 21.45.010–.020; § 21.69.170(C); § 21.48.040(C); § 21.44.030.

Source References

Paso Robles Zoning Code — Chapter 21.45 (Landscaping and Open Space), including § 21.45.010 and § 21.45.020 (purpose, applicability, live plant percentages, irrigation).
Paso Robles Zoning Code — parking and screening provisions (parking landscape area, parking screening). § 21.48.040(C).
Paso Robles Zoning Code — fence restrictions and fence measurements (including reverse corner lot provisions). § 21.44.030.
Paso Robles Zoning Code — outdoor storage / self‑storage / commercial yard screening and landscaped setback standards. § 21.69.150; § 21.69.170(C).
Paso Robles Zoning Code — hillside landscaping and slope planting rates. § 21.81.040(D).
Title 10 cross‑references for street trees and oak preservation (oak tree permit): § 10.01.030 (oak tree removal permit reference within code materials).
For related municipal procedural pages mentioned on this site: see the internal guide pages for Paso Robles Zoning, Paso Robles Parking, Paso Robles Development Standards, Paso Robles Design Review, Paso Robles Overlay Districts, and the California Building Standards Code (for building/fire clearances — consult separately).

Sources

Retrieved passages

Paso Robles Zoning Code (§ 3) High relevance
Paso Robles Zoning Code (Title 10) High relevance
Paso Robles Zoning Code (§ 3) High relevance
Paso Robles Zoning Code (§ 3) High relevance
Paso Robles Zoning Code (Chapter 21.48) High relevance
CWUIC § 65850.6 (Title 24) High relevance
Paso Robles Zoning Code (Section 21.81.040) High relevance
Paso Robles Zoning Code (Chapter 21.45) High relevance

Cited sections

Official Paso Robles code library

Frequently asked questions

What does Paso Robles require for a landscape plan on a commercial site?

A landscape plan is required for new construction and rehabilitated landscapes; it must show irrigation, plant species, maintenance, and meet the minimum live‑plant coverage (30%) and turf limits. See § 21.45.010–.020.

How tall can fences and walls be for outdoor storage and industrial uses?

Outdoor storage areas must be screened by walls/fences generally between 6 ft and 8 ft in height; the review authority can require additional screening in special situations. See § 21.69.170(C).

Do parking lots need landscaping and screening in Paso Robles?

Yes — parking lots with six or more spaces must provide landscape area (8 sq ft per space) and must be screened from adjacent residentially zoned or developed properties with solid/opaque materials and landscaping about 5–6 ft tall. See § 21.48.040(C).

Are there required setback widths for landscaping next to streets or residences?

For outdoor storage and similar uses, the code requires a 25‑ft landscaped setback when abutting collectors/arterials/highways or residentially zoned property, and 15‑ft for less significant streets. See § 21.69.170(C).

What are the rules for trees, street trees, and oak protection?

The landscaping chapter requires trees (including a minimum planting rate on graded slopes) and irrigation; street trees and oak preservation are administered under Title 10 — check the city’s Title 10 (Vegetation) and oak removal permit rules (e.g., § 10.01.030). See § 21.45.020(B)(3), (F) and § 10.01.030.

Can I put parking in the required landscaped setback?

The code allows up to 50% of a landscaped setback to be used for off‑street parking under some conditions, but a 10‑ft landscaped buffer is still required between the property line and the parking area; the review authority may limit this to maintain screening (outdoor storage rules). See § 21.69.170(C).

Are there special rules for fences on corner lots (reverse corner lots) in R‑1?

Yes — on reverse corner lots the street side yard fence height is limited to 3 ft (with a possible modification to 4 ft via site plan modification if sight distance and other findings are satisfied). See § 21.44.030(B).

Does the city require irrigation for new landscaping?

Yes — all landscaping required for erosion control, trees, and architectural enhancement must be irrigated, and irrigation design must comply with Chapter 21.56 (Water Efficient Landscaping). See § 21.45.020(B)(5).

Where are hillside planting requirements and slope protections found?

Hillside landscaping, slope protection, and planting density on graded slopes (including 1 tree per 1,000 sq ft of graded slope) are in the Hillside Development Standards § 21.81.040(D) and are additive to Chapter 21.45.

Who decides whether a proposed landscape/screening plan is acceptable?

Review authority decisions vary by application type — many landscape/screening matters are decided by the development review committee or review authority per the review tables; see the site plan/development review chapters and the authority tables (site plan modifications). See § 21.15.040 and the site plan modification table § 21.17.020 for process references.

If my site has existing oak trees, can I remove them and replace with other landscaping?

Oak removal and protection are handled under Title 10 (oak rules); removal often requires an oak tree removal permit and findings — check Title 10 and coordinate with the city arborist. See § 10.01.030 and the landscaping chapter cross‑references.

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